On 20/01/2017 13:54, Rory O'Donnell wrote: > Hi Mark, > > For 1, there has been discussion on jigsaw-dev, Remy has given you > pointer > > For 2 & 3, core-libs-dev is the best place to open up a discussion.
Thanks. Will do. Mark > > Rgds,Rory > > > On 20/01/2017 12:14, Mark Thomas wrote: >> Rory, >> >> We have a handful of instances where Tomcat currently needs to use >> reflection which are blocked when running on Java 9. >> >> Users can work-around these but it would probably be better if an >> alternative API was identified / provided to achieve the same results >> without reflection. >> >> There are currently three instances I am aware of. >> >> 1. Cleaning direct ByteBuffers >> To avoid OOME, we need to be able to trigger cleaning of a direct >> ByteBuffers. The code in question is at [1]. We need a way to trigger >> DirectByteBuffer.cleaner().clean() via a public API. >> >> 2. Cleaning thread local related memory leaks >> To fix application created memory leaks, we need to be able to clear >> thread locals associated with a given class loader from a thread. >> To be able to warn users they have a memory leak in their application, >> we need to be able to list the thread locals associated with a class >> loader for a thread. The relevant code is at [2]. >> >> 3. Cleaning RMI related memory leaks >> To fix application created memory leaks, we need to be able to clear RMI >> objects associated with a given class loader. >> To be able to warn users they have a memory leak in their application, >> we need to be able to list the RMI targets associated with a given >> classloader. The relevant code is at [3]. >> >> Any suggestions for alternative public APIs to achieve the same ends >> gratefully received. >> >> Kind regards, >> >> Mark >> >> >> [1] >> http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/tomcat/util/buf/ByteBufferUtils.java?diff_format=h&view=annotate#l38 >> >> >> [2] >> http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/catalina/loader/WebappClassLoaderBase.java?diff_format=h&view=annotate#l1823 >> >> >> [3] >> http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/catalina/loader/WebappClassLoaderBase.java?diff_format=h&view=annotate#l2058 >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail:dev-unsubscr...@tomcat.apache.org >> For additional commands, e-mail:dev-h...@tomcat.apache.org >> > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
